You make it sound like you want the client to hang up?! As you know, the primary way a program finds out if a socket is closed is to try reading or writing on it. In this case the server has closed its end of the socket but the client probably doesn't know that (yet)--evidently because it thought it would get the chance to REGISTER On 5/6/13 5:15 PM, Khoa Pham wrote: > Hi pjsip team, > > When I make REGISTER request to server, I often receive this > > 1. client: SYN > 2. server: SYN, ACK > 3. client: ACK > 4. server: FIN, ACK > 5. client: REGISTER > 6. server: RST > > Why in step 5 does client not send FIN, ACK ?? > > -- > Khoa Pham > HCMC University of Science > Faculty of Information Technology > > > _______________________________________________ > Visit our blog: http://blog.pjsip.org > > pjsip mailing list > pjsip at lists.pjsip.org > http://lists.pjsip.org/mailman/listinfo/pjsip_lists.pjsip.org -- Jens B. Jorgensen jbj1 at ultraemail.net -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.pjsip.org/pipermail/pjsip_lists.pjsip.org/attachments/20130507/d87ba061/attachment-0001.html>